Schlumberger Limited supplies technology for reservoir characterization, drilling, production, and processing to the oil and gas industry worldwide. It operates in four divisions: Digital & Integration, Reservoir Performance, Well Construction, and Production Systems. The company offers reservoir interpretation and data processing services open and cased-hole, and slickline services exploration and production pressure and flow-rate measurement services tubing-conveyed perforating services integrated production systems software, consulting, information management, and IT infrastructure services reservoir characterization, field development planning, and production enhancement consulting services and petro technical data services and training solutions. It designs, manufactures, and markets roller cone and fixed cutter drill bits supplies drilling fluid systems, fluid systems and specialty equipment, production technology solutions, and engineered managed pressure and underbalanced drilling solutions and offers environmental services and products provides drilling and measurement, land drilling rigs, and related support services and supplies well planning and drilling, engineering, supervision, logistics, procurement, and contracting services, as well as drilling rig management services. In addition, the company offers well services coiled tubing equipment hydraulic fracturing, multistage completions, perforating, coiled tubing equipment, and services well completion services and equipment artificial lift production equipment and optimization services and production management services. Further, it provides integrated subsea production systems drilling equipment and services onshore and offshore platform wellhead systems and processing solutions and valve and process systems. The company was formerly known as Socie´te´ de Prospection E´lectrique. Schlumberger Limited was founded in 1926 and is based in Houston, Texas.